What was the first ITU PON standard?
What was the first ITU PON standard?
“The first widely deployed system, G-PON [Gigabit PON], is found almost everywhere now and is used by well over 600 million subscribers worldwide,” highlights Effenberger.
What are the three main components of GPON?
A GPON FTTH access network consists of three main components: optical line terminal (OLT), optical splitters, and optical network terminal (ONT).
What protocol does GPON use?
GPON uses an IP-based protocol and either ATM or GEM (GPON encapsulation method) encoding. Data rates of up to 2.5 Gb/s are specified and it is very flexible in what types of traffic it carries. GPON enables “triple play” (voice-data-video) and is the basis of most planned FTTP applications in the near future.
What is the minimum RX sensitivity standard in GPON ONU?
GPON Optical Module
| Type | One-fiber bi-directional optical module, ONU class B+ |
|---|---|
| Port Rate | Tx: 1.24 Gbit/s Rx: 2.49 Gbit/s |
| Minimum Output Optical Power | 0.50 dBm |
| Maximum Output Optical Power | 5.00 dBm |
| Maximum Receiver Sensitivity | -27.00 dBm |
What is the IEEE standard for 10 Gbps PON?
ITU-T G.987
Standards. ITU-T G. 987 is the standard for 10G-PON.
What is difference between GPON and EPON?
GPON and EPON Differences GPON provides three Layer 2 networks: ATM for voice, Ethernet for data, and proprietary encapsulation for voice. EPON, on the other hand, employs a single Layer 2 network that uses IP to carry data, voice, and video. A multiprotocol transport solution supports the GPON structure (Figure 1) .
What is GPON structure?
A GPON network consists of OLT (Optical Line Terminals), ONU (Optical Network Unit), and a splitter. The splitter will divide the signal when needed. The OLT takes in all of the optical signals in the form of beams of light from ONUs and will convert it to an electrical signal. OLTs normally support up to 72 ports.
What is ATM in GPON?
One of many PON standards is GPON. GPON stands for Gigabit Ethernet passive optical network (PON). GPON uses Asynchronous Transfer Mode (ATM) for voice, Ethernet for data, and proprietary encapsulation for voice. This means that it uses fixed-sized cells instead of variably sized packets of data.
What is the maximum channel attenuation for GPON Class B +?
The maximum permissible optical power attenuation between OLT optical ports to ONT input is 28dB, which is by utilizing the so-called Class B optical network elements.
What is GPON and Xgs-PON?
XG-PON is essentially a higher bandwidth version of GPON. It has the same capabilities as GPON and can co-exist on the same fiber with GPON. XG-PON has been minimally deployed to date. XGS-PON (10G down / 10G up) – ITU G.